What to Plant Under Oak Trees in California

Oak trees are an important part of California’s landscape, providing shade and shelter for a variety of wildlife. But their large canopies and deep root systems can create challenges when it comes to planting underneath them. If you’re looking to add some plant life under your oak trees, here are some recommendations for what to plant in California.

Consider the Environment

First things first – before you start planting anything, it’s important to consider the environment underneath your oak tree. These trees can create a very specific microclimate, with dappled shade and varying degrees of moisture. You’ll want to take into account the amount of sunlight and water that reaches the ground, as well as the type of soil you’re working with.

Remember, oak trees are often subject to root rot, so you don’t want to add anything to the soil that will trap water or create drainage problems.

Native Plants

One of the best ways to plant under your oak tree is to use native plants. These are species that are naturally adapted to the local climate and soil, and are often better suited to grow alongside oak trees. Some examples of native California plants that can thrive under oak trees include:

California poppies

Blue-eyed grass

Manzanita

California lilac

Toyon

These plants are not only beautiful, but they also support local wildlife and help maintain a healthy ecosystem in your yard.

Avoid Invasive Species

When planting under your oak tree, it’s important to steer clear of invasive species. These are non-native plants that can spread rapidly and out-compete native plants, disrupting the natural balance of your yard. Some examples of invasive species to avoid include:

English ivy

Bamboo

Periwinkle

Japanese honeysuckle

Pampas grass

Not only can these plants be damaging to the environment, but they can also harm your oak tree’s root system and invite pests and diseases into your yard.

Groundcovers

If you’re looking for a low-maintenance option, groundcovers can be a great choice for planting under oak trees. Many groundcovers are drought-tolerant, require little watering, and can help stabilize the soil, preventing erosion. Some options to consider include:

Creeping thyme

Wild strawberries

Yarrow

California fescue

Creeping sage

Groundcovers also have the benefit of providing a green backdrop for other plants, making your yard look fuller and more lush.

Final Thoughts

Planting under oak trees in California requires careful consideration of your yard’s unique environment. By choosing native plants, avoiding invasive species, and using groundcovers, you can create a beautiful and sustainable landscape that supports both your oak tree and the local ecosystem.